Doctoral Dissertations

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Collaborative technique for wireless sensor network localization
(University of M'Sila, 2024-06-05) BOUKHARI Nawel
This thesis explores sensor networks, focusing on distributed algorithms for localization challenges. It addresses the need to determine node positions after random deployment, crucial for event localization. The proposed solution involves employing a mobile anchor with GPS units, moving within the area of interest, periodically broadcasting its location to assist unknown nodes in self-localization. A novel path planning model for mobile-based localization in WSNs is introduced, incorporating beacon points from five established paths (SCAN, HILBERT, S-type, Z-curve, and Σ-Scan) on the widely used square grid decomposition. Unknown sensor nodes estimate positions using APT and WCWCL-RSSI techniques. The simulation results demonstrate that the proposed model achieves exceptional accuracy, leading to a significant reduction in error rates when compared to alternative models. Moreover, it ensures maximum coverage with a lower path resolution value, indicating its effectiveness in optimizing localization outcomes. The thesis underscores the impact and importance of path parameterization in enhancing the quality of a localization .system with a mobile anchor node